Journal
INFRARED PHYSICS & TECHNOLOGY
Volume 86, Issue -, Pages 116-119Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.infrared.2017.08.020
Keywords
Blood species identification; Noncontact; LSSVM
Categories
Funding
- National High-Tech R&D Program of China (863 Program) [2015AA021105]
- Tianjin Application Basis & Front Technology Study Programs [14JCZDJC33100]
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Identifying whole bloods to be either human or nonhuman is an important responsibility for import-export ports and inspection and quarantine departments. Analytical methods and DNA testing methods are usually destructive. Previous studies demonstrated that visible diffuse reflectance spectroscopy method can realize noncontact human and nonhuman blood discrimination. An appropriate method for calibration set selection was very important for a robust quantitative model. In this paper, Random Selection (RS) method and Kennard-Stone (KS) method was applied in selecting samples for calibration set. Moreover, proper stoichiometry method can be greatly beneficial for improving the performance of classification model or quantification model. Partial Least Square Discrimination Analysis (PLSDA) method was commonly used in identification of blood species with spectroscopy methods. Least Square Support Vector Machine (LSSVM) was proved to be perfect for discrimination analysis. In this research, PLSDA method and LSSVM method was used for human blood discrimination. Compared with the results of PLSDA method, this method could enhance the performance of identified models. The overall results convinced that LSSVM method was more feasible for identifying human and animal blood species, and sufficiently demonstrated LSSVM method was a reliable and robust method for human blood identification, and can be more effective and accurate. (C) 2017 Elsevier B.V. All rights reserved.
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